"Yes, you are not in fact immune to this even if you think you are, that’s why it’s so dangerous."
I think that I am. I'll think about that a bit more. I don't care for popular people so, in fact, my bias might be the other direction. However, I don't think I have ever met a person who I thought was technical and proficient, but turned out not to be.
I have been forced to hire people I knew were not proficient because they passed a test, but not the other way around.